RFR: 8345125: Aarch64: Add aarch64 backend for Float16 scalar operations [v4]

[Tobias Hartmann]

On Fri, 25 Apr 2025 08:33:16 GMT, Bhavana Kilambi <bkilambi at openjdk.org> wrote:

>> This patch adds aarch64 backend for scalar FP16 operations namely - add, subtract, multiply, divide, fma, sqrt, min and max.
>
> Bhavana Kilambi has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update asmtest.out.h to keep it consistent with aarch64-asmtest.py

This caused a regression: [JDK-8355708](https://bugs.openjdk.org/browse/JDK-8355708)

-------------

PR Comment: https://git.openjdk.org/jdk/pull/23748#issuecomment-2835199428